Practice Questions 2 [Chapter 9-18] Book: Epidemiology [Leon Gordis]

A. A three year study done by Boston College found that “tests profoundly shape what

In most cases, scholars view research as large samples of subjects that are either participating in either two groups. Most research studies are considered as an experimental group whereby a treatment, independent variable (IV), or intervention is presented or a control group in which such interventions are not presented (Alberto & Troutman, 2016). Based on case study level C, Case 2, the independent variable is the treatment that is needed to change Rachel’s attitude in class. In the group designs, there is involvement of many subjects with each having an averaged performance, Dependent Variable which is comparable in the evaluation of experimental control. Therefore, Dependent variable in Rachel’s case is her behavior.

Biostatistics. I applied basic informatics techniques with vital statistics and public health records in the description of public health characteristics and in public health research and evaluation. [A.8] I used my knowledge of basic biostatistics to compare positive cases, test submissions, and human population to see if there was any correlation. Understanding biostatistics allowed me to make a valid and meaningful comparison of this data. The information gathered from the biostatistics gives a limited estimate of risk, and should be further evaluated to quantify this risk. The main goal of my project was to interpret the results of statistical analyses in terms of epidemiological human risk factors. [A.9]

Describe the experimental method, state its advantages and disadvantages, and distinguish between independent and dependent variables.

When we are monitoring the health status of the community we are trying to identify and solve the certain problems of the community. We will be looking for the trends and patterns which will then be compared to other communities. This will help us to

information provided came as the result of case studies. Knowing that the data has been tested

Part B: How might each of the following concepts affect the results of the study?

* 1. The researchers analyzed the data they collected as though it were at what level of measurement?

1.The researchers analyzed the data they collected as though it were at what level of measurement?

b.Risk factors- people who experience any form of abuse, traumatic events such as war, natural disasters, kidnapping, torture, and invasive medical procedures.

a. The study was designed as an experimental research by using independent and dependent variables.

a. Conclusion drawn must be based on a sample that represent the entire group .

We used two analyses methods to identify background and to evaluate information that we have.

3. At this point the general direction of the research has probably made clear which of the various research or design types is most appropriate. For example, it may be decided that a survey, or an experiment, or some other design should be used.

A study design is the procedure that guides a researcher on how to collect, analyze and interpret observations. It is a logical model that guides the investigator while he navigates through the various stages of the research. Study types can be classified severally depending on the research strategy employed. A study type can be non-interventional that is ‘observational’ where a researcher just observes and analyses researchable objects or situations without intervening. Non-interventional study designs can be exploratory, descriptive or comparative. A study can also be